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- Log -----------------------------------------------------------------
commit 5b2b5abf4f630c28dc5f018ecced3894ae66f491
Author: Günther Deschner <[email protected]>
Date: Tue Sep 8 11:57:52 2009 +0200
s3-schannel: Fix Bug #6697. Interdomain trusts with Windows 2008 R2 DCs.
The Schannel verifier (aka NL_AUTH_SIGNATURE) structure (32 byte) sent from
a
W2k8r2 DC is passed in a buffer with the size of a NL_AUTH_SHA2_SIGNATURE
(56
byte). We should just ignore the remaining 12 zeroed bytes and proceed.
Guenther
-----------------------------------------------------------------------
Summary of changes:
source3/include/rpc_dce.h | 2 +-
source3/rpc_client/cli_pipe.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
Changeset truncated at 500 lines:
diff --git a/source3/include/rpc_dce.h b/source3/include/rpc_dce.h
index 3dfbc16..cd65ac8 100644
--- a/source3/include/rpc_dce.h
+++ b/source3/include/rpc_dce.h
@@ -92,7 +92,7 @@ enum schannel_direction {
};
/* Maximum size of the signing data in a fragment. */
-#define RPC_MAX_SIGN_SIZE 0x20 /* 32 */
+#define RPC_MAX_SIGN_SIZE 0x38 /* 56 */
/* Maximum PDU fragment size. */
/* #define MAX_PDU_FRAG_LEN 0x1630 this is what wnt sets */
diff --git a/source3/rpc_client/cli_pipe.c b/source3/rpc_client/cli_pipe.c
index 0f64719..5af2c95 100644
--- a/source3/rpc_client/cli_pipe.c
+++ b/source3/rpc_client/cli_pipe.c
@@ -681,7 +681,7 @@ static NTSTATUS cli_pipe_verify_schannel(struct
rpc_pipe_client *cli, RPC_HDR *p
return NT_STATUS_OK;
}
- if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
+ if (auth_len < RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
DEBUG(0,("cli_pipe_verify_schannel: auth_len %u.\n", (unsigned
int)auth_len ));
return NT_STATUS_INVALID_PARAMETER;
}
--
Samba Shared Repository
